Standard No.:	GB/T 31480-2015
English Name:	Materials for high vacuum multilayer insulation of cryogenic vessel
Chinese Name:	深冷容器用高真空多层绝热材料
Chinese Classification:	A82    Packaging material and container
Professional Classification:	GB    National Standard
ICS Classification:	23.020.40 23.020.40    Cryogenic vessels 23.020.40
Source Content Issued by:	AQSIQ; SAC
Issued on:	2015-05-15
Implemented on:	2015-9-1
Status:	valid
Target Language:	English
File Format:	PDF
Word Count:	10500 words
Translation Price(USD):	310.0
Delivery:	via email in 1 business day

Materials for high vacuum multilayer insulation of cryogenic vessel 1 Scope This standard specifies the product types and models, raw materials, technical requirements, test methods, inspection rules, as well as marking, product end-of-manufacturing information, packaging, transportation and storage of common materials for high vacuum multilayer insulation of cryogenic vessel. This standard is applicable to the insulation materials formed by alternately combining spacing materials and heat-resistant radiation shields used in the cryogenic vessel adopting high vacuum multilayer insulation mode. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. GB/T 451.1 Paper and board - Determination of size and deviation GB/T 451.2 Paper and board - Determination of grammage GB/T 451.3 Paper and board - Determination of thickness GB/T 3198 Aluminium and aluminium alloys foils GB/T 9914.2 Test method for reinforcement products - Part 2: Determination of combustible-matter content for glass fibre GB/T 12914 Paper and board - Determination of tensile properties GB/T 14014 Synthetic fiber bolting cloths GB/T 15717 Test method for vacuum-deposited metal thickness - Electric resistance method GB/T 16958 Biaxially oriented polyester film for package GB/T 22638.5 Test methods for aluminium and aluminium alloy foils - Part 5: Determination of wettability by brushing GB/T 31481-2015 Guidance for gas/materials compatibility of cryogenic vessels BB/T 0030-2004 Plastic packaging film deposited with aluminum JB/T 8105.1 Rubber seal connections of vacuum gauges JB/T 8105.2 Metal seal connections of vacuum gauges JC/T 170 E-glass fiber fabrics 3 Terms and definitions For the purpose of this document, the following terms and definitions apply.

Foreword i 1 Scope 2 Normative references 3 Terms and definitions 4 Product types and models 5 Raw materials 6 Technical requirements 7 Test method 8 Inspection rules 9 Marking, and product end-of-manufacturing information 10 Packaging, transportation and storage Annex A (Normative) Test method for apparent thermal conductivity Annex B (Normative) Test method for outgassing rate